Check out, https://www.amazon.com/Neiko-01407A-Electronic-Digital-Stainless/dp/B000GSLKIW/ref=sr_1_1?dchild=1&keywords=Neiko+01407A+Electronic+Digital+Caliper+Stainless+Steel+Body+with+Large+LCD+Screen+%7C+0+-+6+Inches+%7C+Inch%2FFractions%2FMillimeter+Conversion%2CSilver%2FBlack&qid=1596587333&s=hi&sr=1-1 It is dirt cheap but okay. Is it Mitutoyo good, no not a chance. But for a cheapo it's okay I think. Check out: https://www.youtube.com/watch?v=WvszAb0Y0Ec&t=355s Pretty sure the Chinese one in the video is a knockoff of the Neiko as they look pretty much identical except for the name on the right of the caliper. I do own 1 though (actually 2 lol) and for simple stuff, it works perfectly fine.
Welcome to the hobby. I got a Shapeoko 4 last year and it is a great tool.
1) some sort of dust collection solution. I use a Festool dust extractor which is very expensive but also very quiet. Others use a shop vac. But you need something.
2) workholding. The Carbide 3D get a grip kit, some masking tape + super glue (C3D sells a kit), and double sided tape are all I've needed so far.
3) bits will vary based on what you want to make. I'd target having enough variety to get you started while you learn the non-trivial software side of things. This could be as simple as a 1/4" spiral, a 90 deg V bit, and maybe a smaller spiral like a 1/8.
4) some useful tools: a dial indicator (to tram your router), a digital caliper, some sort of sharp knife for various cleanup and other delicate cutting needs, and a flush cut saw to trim tabs after you cut out a part.
Many old timers swear by their analog scales. Weight at one end, powder pan at the other. Calipers are both digital and analog. I don't have an analogue scale yet but want one. Digital Scale I use. Digital Calipers. Here's an analog scale. You don't need to spend a lot of $ to get scales. Having a means to check to your digital scale for a sanity check is always good. My best advice is to get a bullet gauge (again, I like shooters box) and the Lyman reloading manual. Read it. And re-read it. If you can afford a chronograph, get one. If you have money to burn for your hobby, aka Ballistomania, then get the Mitutoyo 500-16-30 calipers. I would love a set...
Dunno, I have a $20 set from Amazon and the battery lasts about a year, I think, with light to moderate use. The brand is NEIKO and it came in a nice grey clamshell case, and does both decimal and fractional inches in addition to metric.
I previously had a slightly cheaper one that killed batteries faster and tended to lose calibration when it was shut off, whereas this one almost always wakes up dead-nuts accurate.
I’m pretty sure this is it:
https://www.amazon.com/dp/B000GSLKIW/ref=cm_sw_r_cp_api_i_SHsdFb3KAK6EF
I'm unsure of the brand or height measurement of the Skoll, you'll need to measure it to be certain and it likely has a a branding on the side of the encoder. So you can find out the brand while measuring it. I would go on amazon and buy a caliper that has decent accuracy, such as
https://www.amazon.com/Neiko-01407A-Electronic-Digital-Stainless/dp/B000GSLKIW
I have this set and it's held up great for in winter temps and the case is good enough to take a few drops.
If you like the G305's scroll wheel, you could look at the TTC White encoder or maybe a ALPS encoder, they're quite smooth. And lubing them would smooth them out and quite them down a bit
I'm unsure what encoder to use for "maximum" smoothness though. Encoder info is quite hard to come by...
A set of calipers: https://www.amazon.com/Neiko-01407A-Electronic-Digital-Stainless/dp/B000GSLKIW/ might be useful.
A triangle file is also useful if you're working with dovetailed sights. I use this: https://dawsonprecision.com/dawson-precision-sight-file/ but any triangle file should be sufficient.
Some kind of lint-free towel or rag to help wipe stuff (oil tends to get everywhere no matter what you do).
Painter's tape can work pretty well to prevent marring while you're beating on stuff with a punch.
A magnetic tray can be nice to hold pins and screws while you have something taken apart.
Eye pro.
Ummm, there's not enough information in that question. Firstly everything on an E28, or any BMW for that matter will be metric. The size and pitch for almost every bolt will be metric coarse. Except, of course, wheel nuts, which have can have three damn options. The simplest way to check the size of threads is with a thread gauge and a caliper Measure the diameter it will be slightly under a round number in mm. eg a 12mm bolt might measure across the threaded portion 11.92mm for example. Then line up the appropriate thread gauge. It should drop into the grooves perfectly. Now you have the thread size, and the pitch. This is all you will need. (yes there are loose fit munitions threads but they aren't found on cars. BTW do NOT buy aluminium wheel nuts. They are the wrong material for purpose.
Cheers